Cell Membrane. Cell Membrane (Lipid Bilayer, Plasma Membrane) Function – Regulates what enters and...

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Cell Membrane

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Transcript of Cell Membrane. Cell Membrane (Lipid Bilayer, Plasma Membrane) Function – Regulates what enters and...

Page 1: Cell Membrane. Cell Membrane (Lipid Bilayer, Plasma Membrane) Function – Regulates what enters and leaves the cell and also provides protection and support.

Cell Membrane

Page 2: Cell Membrane. Cell Membrane (Lipid Bilayer, Plasma Membrane) Function – Regulates what enters and leaves the cell and also provides protection and support.

Cell Membrane (Lipid Bilayer, Plasma Membrane)

•Function – Regulates what enters and leaves the cell and also provides protection and support.

Page 3: Cell Membrane. Cell Membrane (Lipid Bilayer, Plasma Membrane) Function – Regulates what enters and leaves the cell and also provides protection and support.

Cell Membrane (Lipid Bilayer, Plasma Membrane)

•Structure – A double layered sheet. Gives the cell membrane a tough, flexible structure.

Page 4: Cell Membrane. Cell Membrane (Lipid Bilayer, Plasma Membrane) Function – Regulates what enters and leaves the cell and also provides protection and support.

Cell Membrane (Lipid Bilayer, Plasma Membrane)

•Selectively Permeable – Allows only certain substances to pass through.

Page 5: Cell Membrane. Cell Membrane (Lipid Bilayer, Plasma Membrane) Function – Regulates what enters and leaves the cell and also provides protection and support.

Passive Transport

• Movement of molecules across a membrane that does NOT require energy.

Page 6: Cell Membrane. Cell Membrane (Lipid Bilayer, Plasma Membrane) Function – Regulates what enters and leaves the cell and also provides protection and support.

Passive Transport

• Diffusion – Movement of molecules from an area of high concentration to an area of low concentration.

Page 7: Cell Membrane. Cell Membrane (Lipid Bilayer, Plasma Membrane) Function – Regulates what enters and leaves the cell and also provides protection and support.

Passive Transport

• Osmosis – Diffusion of water.

Page 8: Cell Membrane. Cell Membrane (Lipid Bilayer, Plasma Membrane) Function – Regulates what enters and leaves the cell and also provides protection and support.

Active Transport

• Movement of molecules across a membrane that DOES require energy.


Membrane Structure and Function Chapter 5- · Membrane Structure and Function. Cell (plasma) membrane ... ability to discriminate chemical exchanges. Phospholipid Bilayer. A membrane

Membrane Structure and Function Chapter 5- · Membrane Structure and Function. Cell (plasma) membrane ... ability to discriminate chemical exchanges. Phospholipid Bilayer. A membrane

A selectively permeable phospholipid bilayer that surrounds all cells. The Cell membrane is …

A selectively permeable phospholipid bilayer that surrounds all cells. The Cell membrane is …

Movement of Materials The Cell Membrane Plasma Membrane (aka Cell Membrane) Phosopholipid Bilayer Called the Fluid Mosaic Model Selectively Permeable.

Movement of Materials The Cell Membrane Plasma Membrane (aka Cell Membrane) Phosopholipid Bilayer Called the Fluid Mosaic Model Selectively Permeable.

Cell Membrane Notes. Make up of the Cell Membrane Phospholipid bilayer - Two layers of charged lipids face each other, Only small particles with no charge.

Cell Membrane Notes. Make up of the Cell Membrane Phospholipid bilayer - Two layers of charged lipids face each other, Only small particles with no charge.

Cell Structure and Function - Mrs. Parker's Biology Sitemparkerbiology.weebly.com/.../cell_structure_and_function_ppt_.pdf · Cell Membrane Structure Lipid bilayer embedded with proteins

Cell Structure and Function - Mrs. Parker's Biology Sitemparkerbiology.weebly.com/.../cell_structure_and_function_ppt_.pdf · Cell Membrane Structure Lipid bilayer embedded with proteins

Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid

Plasma Membrane and Cell Transport - FLASHES BIOLOGY · Plasma Membrane and Cell Transport 7.3 . Cell Membrane Labeling Lipid bilayer . Phospholipids Fatty acid Phosphate Fatty acid

Cell Membrane I.HOMEOSTASIS: internal “steady state” maintained by the body 1. What is the cell membrane made of? – Phospholipid bilayer Hydrophobic tails.

Cell Membrane I.HOMEOSTASIS: internal “steady state” maintained by the body 1. What is the cell membrane made of? – Phospholipid bilayer Hydrophobic tails.

Cell Biology I. Cellular structure and functionscience.umd.edu/cbmg/faculty/song/688D/Lectures... · Cell membrane: plasma membrane and internal membrane . The bilayer structure of

Cell Biology I. Cellular structure and functionscience.umd.edu/cbmg/faculty/song/688D/Lectures... · Cell membrane: plasma membrane and internal membrane . The bilayer structure of

The Cell Membrane Active and Passive Transport. Cell Membrane ► ► Phospholipid bilayer: hydrophilic heads and hydrophobic tails ► ► Semi-permeability.

The Cell Membrane Active and Passive Transport. Cell Membrane ► ► Phospholipid bilayer: hydrophilic heads and hydrophobic tails ► ► Semi-permeability.

Cellular Transport Cell Membrane and Cell Wall: ALL cells have a cell membrane made of a phospholipid bilayer embedded with proteins Cell Membrane lipid.

Cellular Transport Cell Membrane and Cell Wall: ALL cells have a cell membrane made of a phospholipid bilayer embedded with proteins Cell Membrane lipid.

Plasma membrane is a phospholipid bilayer Protein “icebergs” float in a “sea” of phospholipids The Cell Membrane.

Plasma membrane is a phospholipid bilayer Protein “icebergs” float in a “sea” of phospholipids The Cell Membrane.

Cell Membrane Phospholipid bilayer Phospholipid bilayer Separates inside of cell from environment Separates inside of cell from environment Maintains.

Cell Membrane Phospholipid bilayer Phospholipid bilayer Separates inside of cell from environment Separates inside of cell from environment Maintains.

Cell Structure and Function Chapter 4. Chapter 4 Vocabulary Cell Cell theory Plasma membrane Cytoplasm Nucleus Prokaryote Eukaryote Phospholipid bilayer.

Cell Structure and Function Chapter 4. Chapter 4 Vocabulary Cell Cell theory Plasma membrane Cytoplasm Nucleus Prokaryote Eukaryote Phospholipid bilayer.

Ch 5. Cell Membrane Cell boundary Phospholipid … · Ch 5. Cell Membrane ... Figure 7.3 Phospholipid bilayer Hydrophobic regions of protein Hydrophilic ... Figure 5.18 –Active

Ch 5. Cell Membrane Cell boundary Phospholipid … · Ch 5. Cell Membrane ... Figure 7.3 Phospholipid bilayer Hydrophobic regions of protein Hydrophilic ... Figure 5.18 –Active

CHAPTER 8 CELLS & THEIR ENVIRONMENT Review: Cell (or plasma) membrane – is composed of a lipid bilayer with embedded proteins that float. The cell membrane.

CHAPTER 8 CELLS & THEIR ENVIRONMENT Review: Cell (or plasma) membrane – is composed of a lipid bilayer with embedded proteins that float. The cell membrane.

Cell Membrane The composition of nearly all cell membranes is a double-layered sheet called a lipid bilayer. The phospholipid bilayer gives cell membranes.

Cell Membrane The composition of nearly all cell membranes is a double-layered sheet called a lipid bilayer. The phospholipid bilayer gives cell membranes.

Cell Membrane Transport Notes Cell Membrane and Cell Wall: ALL cells have a cell membrane made of lipid bilayer and proteins Cell Membrane lipid bilayer.

Cell Membrane Transport Notes Cell Membrane and Cell Wall: ALL cells have a cell membrane made of lipid bilayer and proteins Cell Membrane lipid bilayer.

Cell Membrane and Transport Mechanism s. Cell Membrane Fluid Mosaic Model - proteins embedded in a phospholipid bilayer.

Cell Membrane and Transport Mechanism s. Cell Membrane Fluid Mosaic Model - proteins embedded in a phospholipid bilayer.

The Cell Membrane. Notes Outline I. History of the Cell and Cell Theory II. The Cell Membrane a)Selective Permeability III. Structure a)Phospholipid Bilayer.

The Cell Membrane. Notes Outline I. History of the Cell and Cell Theory II. The Cell Membrane a)Selective Permeability III. Structure a)Phospholipid Bilayer.

Cell Membrane Plasma Membrane. Cell Membrane 2 layers (bilayer) of phospholipids Similar to a mayonnaise sandwich –2 pieces of bread with may stuck together.

Cell Membrane Plasma Membrane. Cell Membrane 2 layers (bilayer) of phospholipids Similar to a mayonnaise sandwich –2 pieces of bread with may stuck together.